20KW Dongfeng Cummins generator set 4B3.9-G2 model technical parameters
I.Technical specifications
(1)Unit model:20GF
Common power(KW):20
Standby power(KW):24
Frequency：50Hz
Output voltage:400/230V
Rotational speed:1500rpm
Power factor:COSΦ=0.8(hysteresis)
Fuel consumption of the unit(g/Kw*h):229
Rated output current(A):36
Number of phases/lines:three-phase four-wire
Noise LP7m:95db
External dimensions(mm):1700*900*1400
Weight:710Kg
(2)Diesel engine:
Brand:Dongfeng Cummins
Place of origin:Dongfeng Cummins Engine Co.
Cooling mode:forced water-cooled cycle
Model:4B3.9-G2
Start mode:12V DC start
Intake mode:naturally aspirated
Number of cylinders:4
Total cylinder displacement L:3.9
Oil supply mode:direct injection
Cylinder arrangement:inline
Intercooling mode:water-cooled
Fuel model:domestic 0#light diesel
Speed control mode:electronic speed control
Oil type:WD/40
Bore×stroke：102×120mm
Compression ratio:16.5:1
Lube oil capacity:11L
Cooling system capacity:8L(engine only)
(3)Generator:
Brand:farady
Manufacturer:Farady Power Technology Co.
Place of origin:Liaoning
Model:MP-20-4
Material:pure copper
Insulation grade:H
Voltage control mode:AVR
Voltage:≤4%
Rated voltage(V):400/230
Protection level:IP23
Frequency：50Hz
Number of phases/wiring:three-phase four-wire/Y winding
Frequency adjustment rate(%):≤±0.5(steady state)+10~-7(transient)
Voltage adjustment rate(%):≤±0.5(steady state)+20~-15(transient)
Frequency fluctuation rate(%):≤±0.5
Voltage fluctuation rate(%):≤±0.5
